Dephasing of Multiparticle Rydberg Excitations for Fast Entanglement Generation

被引：61

作者：

Bariani, F. ^{[1
]}

Dudin, Y. O. ^{[1
]}

Kennedy, T. A. B. ^{[1
]}

Kuzmich, A. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 03期

基金：

美国国家科学基金会;

关键词：

ATOMS; BLOCKADE; MEMORY;

D O I：

10.1103/PhysRevLett.108.030501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An approach to fast entanglement generation based on Rydberg dephasing of collective excitations (spin waves) in large, optically thick atomic ensembles is proposed. Long-range 1/r(3) atomic interactions are induced by microwave mixing of opposite-parity Rydberg states. The required long coherence times are achieved via four-photon excitation and readout of long wavelength spin waves. The dephasing mechanism is shown to have favorable, approximately exponential, scaling for entanglement generation.

引用

页数：4

共 24 条

[1]

[Anonymous], 1994, RYDBERG ATOMS, DOI DOI 10.1017/CBO9780511524530.021

[2] Demonstration of a stable atom-photon entanglement source for quantum repeaters [J].

Chen, Shuai ;

Chen, Yu-Ao ;

Zhao, Bo ;

Yuan, Zhen-Sheng ;

Schmiedmayer, Joerg ;

Pan, Jian-Wei .

PHYSICAL REVIEW LETTERS, 2007, 99 (18)

[3] Memory-built-in quantum teleportation with photonic and atomic qubits [J].

Chen, Yu-Ao ;

Chen, Shuai ;

Yuan, Zhen-Sheng ;

Zhao, Bo ;

Chuu, Chih-Sung ;

Schmiedmayer, Joerg ;

Pan, Jian-Wei .

NATURE PHYSICS, 2008, 4 (02) :103-107

[4] Multiplexed memory-insensitive quantum repeaters [J].

Collins, O. A. ;

Jenkins, S. D. ;

Kuzmich, A. ;

Kennedy, T. A. B. .

PHYSICAL REVIEW LETTERS, 2007, 98 (06)

[5] Three-dimensional theory for interaction between atomic ensembles and free-space light [J].

Duan, LM ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW A, 2002, 66 (02) :1-13

[6] Long-distance quantum communication with atomic ensembles and linear optics [J].

Duan, LM ;

Lukin, MD ;

Cirac, JI ;

Zoller, P .

NATURE, 2001, 414 (6862) :413-418

[7] Observation of collective excitation of two individual atoms in the Rydberg blockade regime [J].

Gaetan, Alpha ;

Miroshnychenko, Yevhen ;

Wilk, Tatjana ;

Chotia, Amodsen ;

Viteau, Matthieu ;

Comparat, Daniel ;

Pillet, Pierre ;

Browaeys, Antoine ;

Grangier, Philippe .

NATURE PHYSICS, 2009, 5 (02) :115-118

[8] Fast quantum gates for neutral atoms [J].

Jaksch, D ;

Cirac, JI ;

Zoller, P ;

Rolston, SL ;

Côté, R ;

Lukin, MD .

PHYSICAL REVIEW LETTERS, 2000, 85 (10) :2208-2211

[9] Fast and robust approach to long-distance quantum communication with atomic ensembles [J].

Jiang, L. ;

Taylor, J. M. ;

Lukin, M. D. .

PHYSICAL REVIEW A, 2007, 76 (01)

[10] Consistent analytical approach for the quasi-classical radial dipole matrix elements [J].

Kaulakys, B .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1995, 28 (23) :4963-4971

← 1 2 3 →